P075_100W-500W_Planar Transformer_en0 pages

DESIGN GUIDE Planar Transformers & Inductors

SIZE P075

Power Range 100W-500W

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Design Input Pri. Np Sec. I Out. Sec. Ns1 Sec. Sec. Height

Example Voltage Turns Ns1 Max (2) Turns Ns2 Ns2 mm (in) (1)

Part# VDC (Pins) VDC ADC (Pins) VDC Turns Typ.

1235-1 36-75 6 3.3 302

1 15 5 10.2 (0.400")

1235-2 36-75 6 5 262 2 15 6 10.2 (0.400")

1235-3 36-75 6 12 102 4 15 5 10.2 (0.400") a

1235-4 36-75

15 7.1

15 5 10.2 (0.400")

Q Notes: Full electrical, thermal, and efficiency calculations available upon request 1) Length (L) may

vary depending on terminals. Height (H) may vary depending on input / output requirements. 2)

Estimated value for normal conditions. Current rating can be up to 30% higher for through hole

applications.

SURFACE MOUNT DESIGN

PCB Pad Layout

All Pad dimensions tolerance +/- 0.1

33.0

10.2

6.8

3.4

C/L -

3.4

6.8

10.2

Notes

1. Dimensions are in mm 4. Header: LCP, natural color

2. Drawing not to scale 5. Pins: Copper

3. Tolerance +/- 2% unless noted 6. Pin Finish: Tin (Sn) over Nickel (Ni)

Highlights

• Patented (U.S. PAT. 7,129,809) design with superior

thermal management

• High efficiency (low losses), ultra compact, low-profile

• Great co-planarity of terminals due to patented header

offering repeatable height

• Excellent solderability (Pb-free or Pb/Sn Solder)

• Standard sizes / customer configurations

• Quick custom turn-around often without start-up or tool-

ing costs

• Inductors available for design in all packages

Customize beyond these examples!

Rated power 100W-500W/ Frequency range 150-300kHZ

Surface mount (SMD) or through hole (TH)

Topology - Full Bridge, Half Bridge, Full Bridge ZVS,

Push-Pull, Flyback

Current rating max. SMD=20A, TH = +30%

Isolation voltage pri-sec/pri-core 500-5,000VDC

Soft switching, single or multiple outputs

Different switching frequencies, input/output voltages

Primary turns - other number (no fractions)

Secondary Ns1, Ns2 / Ns3 turns 1 - 8 (no fractions)

Thermal solutions heat sinks, etc.

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26.4 mm

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These models are for reference only and may NOT exactly match the design examples provided.

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